Anodized Film Thickness of Aluminum Profiles

　　The anodized film thickness of aluminum profiles is a crucial parameter that affects the performance and durability of the profiles. Anodizing is an electrochemical process that creates a protective oxide film on the surface of the aluminum. This film not only enhances the corrosion resistance of the aluminum but also improves its wear resistance and provides a decorative finish.

　　The thickness of the anodized film can vary depending on the application requirements. For general architectural applications, the anodized film thickness typically ranges from 5 to 20 μm. In applications where the aluminum profiles are exposed to harsh environments, such as coastal areas with high humidity and salt - laden air, a thicker anodized film of 15 to 25 μm may be preferred. This thicker film offers better protection against corrosion, ensuring the long - term integrity of the profiles.

　　In the automotive industry, where appearance and durability are important, the anodized film thickness on aluminum alloy wheels, for example, is carefully controlled. A film thickness of around 10 to 15 μm is often used to provide a good balance between corrosion resistance and a smooth, attractive finish. The anodized film can also be dyed to achieve different colors, further enhancing the aesthetic appeal of the wheels.

　　The anodizing process involves immersing the aluminum profile in an electrolyte solution and passing an electric current through it. The thickness of the anodized film is directly related to the time of immersion and the current density during the anodizing process. A longer immersion time and a higher current density will result in a thicker anodized film. However, there are limits to how thick the film can be made. If the film is too thick, it may become brittle and prone to cracking, which can reduce its protective properties.

Read recommendations:

Industrial Profiles

40 x 40 aluminium profile price

aluminum die casting auto parts

aircraft aluminum extrusions

custom plastic injection moulding